/*
 * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.engine.impl.persistence.entity;

import java.util.List;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.api.internal.Internal;
import org.activiti.engine.delegate.event.ActivitiEventType;
import org.activiti.engine.delegate.event.impl.ActivitiEventBuilder;
import org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl;
import org.activiti.engine.impl.persistence.entity.data.AttachmentDataManager;
import org.activiti.engine.impl.persistence.entity.data.DataManager;
import org.activiti.engine.task.Attachment;
import org.activiti.engine.task.Task;

/**


 */
@Internal
@Deprecated
public class AttachmentEntityManagerImpl
    extends AbstractEntityManager<AttachmentEntity>
    implements AttachmentEntityManager {

    protected AttachmentDataManager attachmentDataManager;

    public AttachmentEntityManagerImpl(
        ProcessEngineConfigurationImpl processEngineConfiguration,
        AttachmentDataManager attachmentDataManager
    ) {
        super(processEngineConfiguration);
        this.attachmentDataManager = attachmentDataManager;
    }

    @Override
    protected DataManager<AttachmentEntity> getDataManager() {
        return attachmentDataManager;
    }

    @Override
    public List<AttachmentEntity> findAttachmentsByProcessInstanceId(String processInstanceId) {
        checkHistoryEnabled();
        return attachmentDataManager.findAttachmentsByProcessInstanceId(processInstanceId);
    }

    @Override
    public List<AttachmentEntity> findAttachmentsByTaskId(String taskId) {
        checkHistoryEnabled();
        return attachmentDataManager.findAttachmentsByTaskId(taskId);
    }

    @Override
    public void deleteAttachmentsByTaskId(String taskId) {
        checkHistoryEnabled();
        List<AttachmentEntity> attachments = findAttachmentsByTaskId(taskId);
        boolean dispatchEvents = getEventDispatcher().isEnabled();

        String processInstanceId = null;
        String processDefinitionId = null;
        String executionId = null;

        if (dispatchEvents && attachments != null && !attachments.isEmpty()) {
            // Forced to fetch the task to get hold of the process definition
            // for event-dispatching, if available
            Task task = getTaskEntityManager().findById(taskId);
            if (task != null) {
                processDefinitionId = task.getProcessDefinitionId();
                processInstanceId = task.getProcessInstanceId();
                executionId = task.getExecutionId();
            }
        }

        for (Attachment attachment : attachments) {
            String contentId = attachment.getContentId();
            if (contentId != null) {
                getByteArrayEntityManager().deleteByteArrayById(contentId);
            }

            attachmentDataManager.delete((AttachmentEntity) attachment);

            if (dispatchEvents) {
                getEventDispatcher().dispatchEvent(
                    ActivitiEventBuilder.createEntityEvent(
                        ActivitiEventType.ENTITY_DELETED,
                        attachment,
                        executionId,
                        processInstanceId,
                        processDefinitionId
                    )
                );
            }
        }
    }

    protected void checkHistoryEnabled() {
        if (!getHistoryManager().isHistoryEnabled()) {
            throw new ActivitiException("In order to use attachments, history should be enabled");
        }
    }

    public AttachmentDataManager getAttachmentDataManager() {
        return attachmentDataManager;
    }

    public void setAttachmentDataManager(AttachmentDataManager attachmentDataManager) {
        this.attachmentDataManager = attachmentDataManager;
    }
}
